NCT01798771 (IMAGER).

Study name	Intraoperative MRI and 5‐ALA guidance to improve the extent of resection in brain tumor surgery (IMAGER)
Methods	Randomised
Participants	Newly diagnosed supratentorial intra‐axial brain tumour suspicious for malignant glioma. Deemed resectable
Interventions	iMRI + 5‐ALA vs 5‐ALA alone
Outcomes	EOR (according to postoperative MRI within 72 hours); volumetric EOR; progression‐free survival; quality of life; National Institutes of Health Stroke Scale
Starting date	February 2013
Contact information	Christian Senft
Notes	Johann Wolfgang Goethe University Hospitals, Germany